package demo2;

public class KeyBoard implements IUSB {

    @Override
    public void openDevice() {
        System.out.println("打开键盘！");
    }

    @Override
    public void closeDevice() {
        System.out.println("关闭键盘！");
    }

    public void inPut() {
        System.out.println("敲击键盘！");
    }
}
